Suction burner with regulation of oil by variation of level and of suction force



Nov. 17,1925. I 1,561,527

J. AUBE SUCTION BURNER WITH REGULATION OF OIL BY VARIATION OF LEVEL ANDOF SUCTION FORCE Filed Jan. 17, 1925 Fly].

F1 .2 y ga J Z 0 r B T I .Zfiwefil' of the 22nd February, 1921.,

Patented Nov. 17, 1925.

JEAN AUBE, OF PARIS, FRANCE, ASSIGNOR TO sooIETE ANONYME: ANCIENSETABLISSEMENTS LOY ET AUBE. OF PARIS, FRANCE.

SUCTION BURNER WITH REGULATION OF OIL BY VARIATION OF LEVEL AND OFSUCTION FORCE.

Application filed January 17, 1925.

To all whom may concern:

Be it known that I, JEAN Anni a citizen of the French Republic, residing63 Avenue des Champs Elysees, Paris, France, have 5 invented new anduseful Improvements in a Suction Burner with Regulation of Oil byVariation of Level and of Suction Force, of which the following is thespecification.

In the United States Patent No. 1,369,605

it has been indicated that the essential feature of the in ventionforming the subject-matter of the said patent consisted in that theregulation of the supply of oil was effected, either by 15 separatelyvarying the height of the column of suction of the oil or the supply ofthe air injected in the burner, or by simultaneously acting on these twovariables.

In case the regulation is effected by modification of the supply of airinjected, it has been indicated that the burner was constituted by acasing in which the air is admitted and which is open at one of its endsfor the passage of an oil projecting 5 nozzle. This nozzle was dipping,at one of its ends, in the oil tank whilst the other end was combinedwith a cone, adjustable in position relatively to the corresponding endof the casing of the burner, for obtaining at will the proportions ofoil. and air corresponding to the rate of combustion desired. But, if,for modifying the oil supply, the quantity of primary air injected isacted upon, an indirect influence is exerted on the quantity ofsecondary air sucked in the atmosphere and which is to be again.

regulated.

The present invention has for ob'ect improvements in this latter type ofurner; these improvements essentially consist in combining thedisplacement of the cone relatively to the casing or to the oilprojecting nozzle with the displacement of the obturators preventing theadmission of air under pressure in the casing and the admission ofsecondary air sucked in the atmosphere; by the operation of a singlemember the increase or reduction of supply is thus obtained, withoutexerting any influence on the initial regulation ofthe combustion.

In the accompanying drawing and by waly of example:

igs. 1 and 2 illustrate respectively in Serial No. 3,134.

vertical section and in two half transverse sections according to linesAA and B-l3 of Fig. 1, a burner constructed in accordance with theimprovements forming the subject-matter of the present invention.

As already indicated, the burner conr prises a chambered body areceiving the air under pressure and in which is arranged the oilprojecting nozzle 0. But, in the device forming the subject-matter ofthe invention, the nozzle 0 is mounted on a bearing 7) forming a part ofa body constituting a tank with overflow for the oil and a casing forthe whole of the burner. For this purpose,this body is constituted by acylin drical casing a terminating in a base Qt permitting to fit thewhole on a furnace for instance. This casing of is provided with holes aand carries the pipe 7' for adduction of air under pressure. Its innerbore serves as a guide for the cylindrical. body a of the burner whichis provided with a ledge, also cylindrical, having holes a correspondingto the holes a of the easing a A channel puts the pipe j incommunication with the chamber in which is arranged the fixed nozzle 0,the open end of the chamber receiving the adjusting cone 5. The casing ais closed by a partition through which passes the pipe cl leading to thenozzle 0 on the one hand, and. dipping on the other hand, in theconstant level tank e, separated by a partition. of the overflow vessel0 The oil arrives in the pipe n in the first of these vessels, and theexcess collected in the vessel 0- is evacuated through the pipe 0.

In these conditions, i f the body a is helically displaced in itscylindrical casing if, it will be seen that simultaneously are caused tovary:

1. The position of to the oil nozzle 0.

2. The section of passage for the air under pressure, owing to thedisplacement of the channel 7' relatively to the orifice of the pipe 7'.

3. The section of passage of the secondary the cone 6 relatively airowing to the displacement of the holes remain in the same proportionscorresponding tothe .rate ofcombustion desired: neutral or reducing oroxidizing atmosphere. The realization of one or the other of these ratesof combustion iseflected by previously adjusting the initial position of.the cone 5 relatively to the nozzle 0.

Fol-obtaining the helicoidal displacement of the body a of the burner,use may beinade of any suitable kinematic connection. In the caseillustrated, the body a simply carries a claw m (extending in the shapeof an operating handle) which fits in a groove y,

.of suitable shape, provided in the casing a For the control at adistance, the body a forming a key plug, cancarry atoothed segmentameshing With an operating crank 2 lVhat I claim as my invention anddesire to secure by Letters Patent is:

1. In a burner operating by suction of the liquid fuel, a cylindricalcasing, a sleeve co-axial With the liquid hydrocarbon feeding tube, achannel, in the said sleeve, surrounding the hydrocarbon feeding tube, aconical nozzle at the orifice of the said channel, a passage connectingthe said channel with thetube for the admission of air'under pressure, acylindricalflange forming an extension of the said sleeve, openings inthe said cylindrical flange, corresponding ports in'the cylindricalcasing guiding the sleeve for cooperating with the openings of theflange.

2. Ina burner operating by suction of the liquid fuel, a cylindricalcasing, a sleeve coaxial With the liquid hydrocarbon feeding tube,achannel, in the said sleeve, surrounding the hydrocarbon feeding tube,a conical nozzle at the orifice of the said channel, a passageconnecting the said channel with the tube forthe admission of air underpressure, a cylindrical flange forming an extension of the said sleeve,openings ,in the said cylindrical flange, corresponding ports in thecylindrical casing guiding the sleeve .for cooperating With the openingsof the flange, and means for subjecting the said sleeve and its flangeto helicoidal displacements rela tively'to the cylindricalguide casing.

3. In a burner-operating by suction of the liquid fuel, a cylindricalcasing, a sleeve co-axial .with the liquid hydrocarbon feeding tube, achannel, in the saidsleeve, surrounding the hydrocarbon feeding tube, aconical nozzle at the orifice of the said channel, a passage connectingthe said channel with the tube for the admission of air under pressure,a cylindrical flange forming an extension of the said sleeve, openingsin the said cylindrical flange, corresponding ports in the cylindricalcasing guiding the sleeve for cooperating with the openings of theflange, anrhydrocarbon feeding tube in communication with the constantlevel vessel and the opposite-end of Which cooperates Withthe conicalnozzle, and means for subjecting the-said sleeve andits flange'tohelicoidal displacements relatively to the cylindrical guide casing.

l. In a burner operating by suction of the liquid fuel, a cylindricalcasing, a sleeve coaxial With the liquid hydrocarbon feeding tube, achannel, in the saidsleeve; surrounding the hydrocarbon feeding tube, aconical nozzleat the orifice of the said channel, a passage connectingthe said channel with the tube for the admission of air under pressure,a cylindrical flange forming an extension-of the said sleeve, openingsin the said cylindrical flange, corresponding ports in the cylindricalcasing guiding the sleeve 'for cooperating With the openings of theflange, an hydrocarbon feeding tube in communication with the constantlevel vessel-and the opposite end of which cooperates With the conicalnozzle, a helical groove in the Wall vof the cylindrical guide'casing,an operating rod, integral with the sleeve and its flange forcooperating with the helical groove and effectingthe displacements ofthe sleeve and of its-flange.

In testimony whereof I haveihereunto affixed my signature.

JEAN AUBE.

